Oven



FIG. 1 is a front perspective view of an oven showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a side elevation view thereof;

FIG. 5 is another side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines are for environmental purposes only and form no part of the claimed design. 

CLAIM We claim, the ornamental design for an oven, as shown and described. 